Results 1 to 10 of about 199,958 (137)

Principal Bundle Structure of Matrix Manifolds

open access: yesMathematics, 2021
In this paper, we introduce a new geometric description of the manifolds of matrices of fixed rank. The starting point is a geometric description of the Grassmann manifold Gr(Rk) of linear subspaces of dimension ...
Marie Billaud-Friess   +2 more
doaj   +4 more sources

Stability of the matrix model in operator interpretation

open access: yesNuclear Physics B, 2017
The IIB matrix model is one of the candidates for nonperturbative formulation of string theory, and it is believed that the model contains gravitational degrees of freedom in some manner.
Katsuta Sakai
doaj   +5 more sources

Stable Higgs bundles over positive principal elliptic fibrations

open access: yesComplex Manifolds, 2018
Let M be a compact complex manifold of dimension at least three and Π : M → X a positive principal elliptic fibration, where X is a compact Kähler orbifold. Fix a preferred Hermitian metric on M.
Biswas Indranil   +2 more
doaj   +2 more sources

On diffeological principal bundles of non-formal pseudo-differential operators over formal ones

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2023
We describe the structure of diffeological bundle of non formal classical pseudo-differential operators over formal ones, and its structure group. For this, we give results on diffeological principal bundles with (a priori) no local trivialization ...
Jean-Pierre Magnot
doaj   +1 more source

Curvature and torsion pseudotensors of coaffine connection in tangent bundle of hypercentred planes manifold

open access: yesДифференциальная геометрия многообразий фигур, 2020
The hypercentered planes family, whose dimension coincides with dimension of generating plane, is considered in the projective space. Two principal fiber bundles arise over it.
A.V. Vyalova
doaj   +1 more source

Can You Hear the Shape of a Market? Geometric Arbitrage and Spectral Theory

open access: yesAxioms, 2021
Utilizing gauge symmetries, the Geometric Arbitrage Theory reformulates any asset model, allowing for arbitrage by means of a stochastic principal fibre bundle with a connection whose curvature measures the “instantaneous arbitrage capability”.
Simone Farinelli, Hideyuki Takada
doaj   +1 more source

Spin(8,C)-Higgs pairs over a compact Riemann surface

open access: yesOpen Mathematics, 2023
Let XX be a compact Riemann surface of genus g≥2g\ge 2, GG be a semisimple complex Lie group and ρ:G→GL(V)\rho :G\to {\rm{GL}}\left(V) be a complex representation of GG.
Antón-Sancho Álvaro
doaj   +1 more source

Construção de um bundle para alívio da dor na punção arterial norteado pela Tradução do Conhecimento [PDF]

open access: yesEscola Anna Nery, 2022
RESUMO Objetivo descrever o processo de construção e estratégias de implementação de um bundle para alívio da dor durante a punção arterial do bebê hospitalizado.
Roberta Tognollo Borotta Uema   +5 more
doaj   +1 more source

Chern character in twisted K-theory: equivariant and holomorphic cases [PDF]

open access: yes, 2002
It has been argued by Witten and others that in the presence of a nontrivial B-field, D-brane charges in type IIB string theories are measured by twisted K-theory.
Mathai, Varghese, Stevenson, Danny
core   +7 more sources

Towards an extended/higher correspondence

open access: yesComplex Manifolds, 2021
In this short paper, we will review the proposal of a correspondence between the doubled geometry of Double Field Theory and the higher geometry of bundle gerbes.
Alfonsi Luigi
doaj   +1 more source

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